Compress an audio file
Make a recording smaller — for email, a messenger or a slow connection. Speech stays clear even at the lowest quality.
Your file never leaves your device. It is converted right here, in your browser — nothing is uploaded.
or drop it here
Want the text of this recording?
Upload it to SonaFact: the file you just made goes straight there, no need to choose it again. Speakers are separated and every line plays back from its moment. 3 transcriptions a day free, no card.
Get the transcriptQuestions
- Are my files uploaded anywhere?
- Your file never leaves your device. It is converted right here, in your browser — nothing is uploaded.
- Do I need an account?
- Every tool here is free and needs no account. All of them except the subtitle translator and WhatsApp audio to text work in your browser: your files are not uploaded anywhere.
Related tools
- Trim audioCut the part of a recording you need: set the start and the end, listen, download as MP3. Free, in your browser, nothing is uploaded.
- Merge audio filesJoin several recordings into one MP3, in the order you choose. Free, in your browser, the files stay on your device.
- Make audio louderMake a quiet recording louder: the whole file is set to −16 LUFS and peaks are held below clipping. Listen before and after, save as MP3 or WAV. Free, nothing is uploaded.
- Remove background noiseReduce hiss, fan, air conditioning and street noise behind speech. Listen before and after, save as MP3 or WAV. Free, in your browser, nothing is uploaded.